Question

If x=a and y=b is the solution of the equation x+y =6 and x-y=w the find the value of a and b

Answer 1

Answer:

 If x+y=16 and x-y=2y then what should be the value of (x-3y )? ... 1/x^3+1/y^3=(a^3–3ab)/b^3 . , Answer.